Chapter 8 Test Review - Part 1

Question 0

Identify these contractions: Shortens the muscles and causes movement.

Answer 0

Isotonic

Question 1

Identify these contractions: Slight, constant contraction during consciousness.

Answer 1

Tone

Question 2

Identify these contractions: Increases muscle tension but no movement occurs.

Answer 2

Isometric

Question 3

Identify these contractions: Continuous sustained contraction allowing smooth movement

Answer 3

Tetanus

Question 4

Identify these contractions: “Stairstep” increase in contraction with repeated stimulation before muscle has completely relaxed.

Answer 4

Summation

Question 5

Name the type of tissue described: Multinucleated

Answer 5

Skeletal

Question 6

Name the type of tissue described: Found in blood vessels and stomach

Answer 6

Smooth

Question 7

Name the type of tissue described: Voluntary

Answer 7

Skeletal

Question 8

Name the type of tissue described: Branched with intercalated discs.

Answer 8

Cardiac

Question 9

Name the type of tissue described: Spindle-shaped

Answer 9

Smooth

Question 10

Name the type of tissue described: Cylindrical in shape; unbranched.

Answer 10

Skeletal

Question 11

Name the type of tissue described: Striated

Answer 11

Cardiac, skeletal

Question 12

Name the type of tissue described: Involuntary

Answer 12

Cardiac, smooth

Question 13

Name the type of tissue described: Found in heart

Answer 13

Cardiac

Question 14

Name the type of tissue described: Unstraited

Answer 14

Smooth

Question 15

Name the type of tissue described: Usually attached to bones

Answer 15

Skeletal

Question 16

Name the type of tissue described: Longest individual cells

Answer 16

Skeletal

Question 17

Name the type of tissue described: Nonstriated

Answer 17

Smooth

Question 18

Does the length of actin and myosin filaments change during muscle contraction?

Answer 18

No

Question 19

What is essential for maintaining posture?

Answer 19

Tone

Question 20

What is the third phase (period) or a muscle twitch contraction?

Answer 20

Relaxation

Question 21

What are the structures in the enlarged bulb of an axon provide energy to make ACh?

Answer 21

Mitochondria

Question 22

What is the state of limpness in which muscle tone is lost?

Answer 22

Flaccid

Question 23

What is the cytoplasm of a muscle fiber?

Answer 23

Sarcoplasm

Question 24

What is the tissue that is responsible for most of the heat production going on in our body?

Answer 24

Muscle tissue

Question 25

All the muscle fibers in a ____ must contract or relax together.

Answer 25

Motor unit

Question 26

The movement of these ions from outside the sarcolemma to inside causes an action potential to begin to move along.

Answer 26

Sodium ions

Question 27

What are the ions that are necessary to trigger muscle contraction?

Answer 27

Calcium ions

Question 28

What are dietary supplements that some studies show may result in more lifting power?

Answer 28

Creatine

Question 29

What is the storage form of glucose in our liver and muscles?

Answer 29

Glycogen

Question 30

What is the anaerobic process that provided enough energy for 30-40 seconds of maximal activity?

Answer 30

Glycosis

Question 31

What connective tissue attaches muscle to bone?

Answer 31

Tendon

Question 32

What is the source of energy for muscle contraction?

Answer 32

ATP

Question 33

What is another name for an action potential?

Answer 33

Impulse

Question 34

What is required by mitochondria in the aerobic production of energy for muscle contraction?

Answer 34

Oxygen

Question 35

What is another name for muscle cells?

Answer 35

Fiber

Question 36

What is the cell membrane of muscle cells?

Answer 36

Sarcolemma

Question 37

What is the alternate light and dark bands running through the sarcoplasm of a muscle cell?

Answer 37

Strations

Question 38

What is a single nerve fiber and the muscle fibers it supplies?

Answer 38

Motor unit

Question 39

What chemical is necessary to transfer the nerve impulse to stimulate the muscle?

Answer 39

Acetylcholine (ACl)

Question 40

What is the time between the application if a stimulus and the actual shortening of the muscle?

Answer 40

Latent period

Question 41

What are the two types of skeletal muscle contractions needed for normal body movements?

Answer 41

Isotonic/Tetanus

Question 42

What is the connection between a nerve fiber and a muscle fiber?

Answer 42

Neuromuscular junction

Question 43

What is a brief contraction if all muscle fibers of a motor unit in response to a single stimulus?

Answer 43

Twitch

Question 44

Most if the Ca+2 is found here when a fuscle fiber is relaxed.

Answer 44

Sarcoplasmic Reticulum

Question 45

What is a stiffening of the muscles after death due to Ca+2 leaking out of the Sarcoplasmic reticulum?

Answer 45

Rigor mortis

Question 46

Name the major functions of the muscles:

Answer 46

Body position, movement of heat, stabilize, volume

Question 47

What is the neurotransmitter released from the synaptic vesicles of neurons supplying skeletal muscle?

Answer 47

ACh

Question 48

What is the thick notify lament that had enlarged heads to from cross bridges?

Answer 48

Myosin

Question 49

Skeletal muscles have a ______ blood supply and a ______ nerve supply.

Answer 49

Good, good